From 38de156a05a4421103e93d43b36e9967e63fb707 Mon Sep 17 00:00:00 2001 From: Michael Naumov Date: Wed, 28 May 2014 03:12:15 +0000 Subject: sideband.c: do not use ANSI control sequence on non-terminal Diagnostic messages received on the sideband #2 from the server side are sent to the standard error with ANSI terminal control sequence "\033[K" that erases to the end of line appended at the end of each line. However, some programs (e.g. GitExtensions for Windows) read and interpret and/or show the message without understanding the terminal control sequences, resulting them to be shown to their end users. To help these programs, squelch the control sequence when the standard error stream is not being sent to a tty. NOTE: I considered to cover the case that a pager has already been started. But decided that is probably not worth worrying about here, though, as we shouldn't be using a pager for commands that do network communications (and if we do, omitting the magic line-clearing signal is probably a sane thing to do). Thanks-to: Erik Faye-Lund Thanks-to: Jeff King Signed-off-by: Michael Naumov Signed-off-by: Junio C Hamano --- sideband.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'sideband.c') diff --git a/sideband.c b/sideband.c index d1125f5c52..7f9dc229fb 100644 --- a/sideband.c +++ b/sideband.c @@ -30,7 +30,7 @@ int recv_sideband(const char *me, int in_stream, int out) memcpy(buf, PREFIX, pf); term = getenv("TERM"); - if (term && strcmp(term, "dumb")) + if (isatty(2) && term && strcmp(term, "dumb")) suffix = ANSI_SUFFIX; else suffix = DUMB_SUFFIX; -- cgit v1.2.3